Epstein, Robert. The big book of motivation games : quick, fun activities for energizing people at work or at home / Robert Epstein and Jessica Rogers - New York : McGraw-Hill, 2001. - xix, 224 p. : ill. ; 20 cm. Includes index. ISBN: 0071372342 Subjects--Topical Terms: philosophy. Dewey Class. No.: 153.8 / EPB 2001